We report a case of granulocytic sarcoma presented as a recurrent breast tumor in a 42-year-old woman with no history of leukemia. The case was initially diagnosed as malignant lymphoma on a previous biopsy specimen and she refused chemotherapy. At the time of recurrence of the breast tumor, the patient showed full-blown features of leukemia. This case of rare tumor suggests that differential diagnosis should be considered when malignant lymphoma of the breast is detected.
Adult ; Breast Neoplasms/surgery ; Breast Neoplasms/pathology ; Breast Neoplasms/diagnosis+ACo- ; Carcinoma, Lobular/diagnosis ; Case Report ; Cell Nucleus/ultrastructure ; Diagnosis, Differential ; Diagnostic Errors+ACo- ; Female ; Human ; Leukemia, Myelocytic, Acute/pathology ; Leukemia, Myelocytic, Acute/diagnosis+ACo- ; Lymphoma, Large-Cell, Diffuse/diagnosis+ACo- ; Neoplasm Recurrence, Local/pathology

We report a case of granulocytic sarcoma presented as a recurrent breast tumor in a 42-year-old woman with no history of leukemia. The case was initially diagnosed as malignant lymphoma on a previous biopsy specimen and she refused chemotherapy. At the time of recurrence of the breast tumor, the patient showed full-blown features of leukemia. This case of rare tumor suggests that differential diagnosis should be considered when malignant lymphoma of the breast is detected.
Adult ; Breast Neoplasms/surgery ; Breast Neoplasms/pathology ; Breast Neoplasms/diagnosis+ACo- ; Carcinoma, Lobular/diagnosis ; Case Report ; Cell Nucleus/ultrastructure ; Diagnosis, Differential ; Diagnostic Errors+ACo- ; Female ; Human ; Leukemia, Myelocytic, Acute/pathology ; Leukemia, Myelocytic, Acute/diagnosis+ACo- ; Lymphoma, Large-Cell, Diffuse/diagnosis+ACo- ; Neoplasm Recurrence, Local/pathology